/Engine/Plugins/VirtualProduction/DMX/DMXEngine/Source/DMXRuntime/Public/Sequencer/MovieSceneDMXLibrarySection.h
Returns the function channel, or nullptr if it got moved or deleted
const [FDMXFixtureFunctionChannel](API\Plugins\DMXRuntime\Sequencer\FDMXFixtureFunctionChannel) * TryGetFunctionChannel ( const [TArray](API\Runtime\Core\Containers\TArray)< [FDMXFixturePatchChannel](API\Plugins\DMXRuntime\Sequencer\FDMXFixturePatchChannel) > & FixturePatchChannels ) const